Machine for coating and surfacing prepared roofing



Sept. '14 1926.

/ w. H. CADY MACHINE FOR COATING AND SU RFACING PREPARE! ROOFING Filed Dec. 31. 1921 IU QK Patented Sept. 14, 1926,

TUNITED siwrss v v 1,-sea51z- PATENT orrics.

I WALTER H. CADY, F BOSTON, MASSACHUSETTS, ASSIGNOB TO .FLmTKOTE COMP A CORPORATION 01 MASSACHUSETTS.

MACHINE FOR COATING AND SURFACING PREPARED ROOFING.

Application illed December 31, 191M. Serial No. 526,829.

This invention relates to" a process and machine for coating and surfacing prepared shingles and'refers more particularly to a process and apparatus in which prepared roofing in the formof strip shingles ma be after they are formed and cut out individually thoroughly coated and surfaced subsequent to their being cut into shingle units.

An important object of the invention is the fact that all surface and edges of the strip shingles are completely covered and that any waste material is recovered to be recycled in,the covering of other shingles. Fig. 1 is aplan view of the apparatus. 'Fig. 2 is a sideelevation with asubstantial part of the machine'omitted for clearness in showing the salient points of the invention.

.blanks cutfrom prepared roofing material common in the art, are introduced between the rolls 1 and 2, .beingengaged-by the upper roll by lugs 3 positioned thereon in a manner to'register with the cut out portions 4 of -thestrip shingles 5. A c ntral guide 6 in the center of the upper ro properly feed the shingle units and to prevent theirlateral displacement as they pro- 'gress into the .endless belt 7. The strip shingles as they are fed between the rolls, are coated with a bituminous mastic sub-. stance such as asphalt or. other waterproofing substances which are used to coat prepared roofing. The 'asphalticcoating substance-is maintained in a hopper 8 which is positioned over the rolls so that the heated asphaltic coating in a fluid or semi-fluid condition flows down through the funnellike spouts 9 and collects behind a doctor knife 10 which serves to spread: the

waterproofing substance evenly over the surface of the roll so that it will be uniformly fed as a coating substance onto a strip shingle. It also prevents the collection of'accumulationsjof'the waterproofing substance on the'upper roll. Any excess waterproofing substance will be carried off into the lower-panor container which is situated below the lower roll. The-endless belt 7 runs over a plurality iof'spools 12 and passes-under a hopper 13 and between pressure rolls 14 and 15, the strip shingles after being coated, while passing" between Referring to the'drawings, strip shin 1e.

1 serves to into the coating; the rolls 1 and 2 progresswith the belt unv til they reach, aposition beneath the hopper 13. This hopper contains granular surfacing material such as ground slate which is fed onto'the adhesive coating surface of the shingle, the excess surfacing collecting upon the belt. The shingles then pass on between the pressure rolls 14 and 15 where the surfacing materialis pressed into the coating to ,form the completed product.

After leavingthe pressure rolls, the shingle blanks leave the endless belt and pass onto a receiving belt 16 which conveys them to a refrigerator. Beneath the end of the endless belt 7 is a pan or hopper as shown at 17 in which collects the excess surfacing material which is deposited upon the belt during its passage under the hopper 13. At 18 is situated a cleaning brush which is rotated in a manner to thoroughly clean the surface of the belt prior to its return to receive the coated shingles from the rolls 1 and 2. I

The driving mechanism of the respective rolls and spools for running thebelts, has been purposely omitted as it forms no part of the invention; It is understood, hoevever, that the rolls must ,be operated at relative speed, so that the strip shingles will be properly fed and progressed at a-uni form rate through the process of coating-and sur facing. I In. this mannerstrip shingles whichhave been cut from the prepared roofing sheet may be'readily coated and surfaced and all portions 'of the shingle unit uniformly 00 treated. The lugs 3.0n the .roll 1 in re ist'ering with the cut out portions of the s ingle] units, keep the cut'out portions free of any coating material which would tend to collect as the strip shingles pass through the ,c: initial coating stage. I

I claim as my invention:

A Ima'chine for surfacing individual roof ing strips severed from a flexible sheet of roofing, comprising a traveling belt for car- 100 rying the separate shingle elements, a coating roll for applying the waterproof bituminous substance to the-surface of said: eleelements while carried "by; the belt,.pressure rolls. for impressing asurfacing material WALTER n. oknr. 

